Fire extinguisher



Jan. 14. 1930; H. M. GRlLLS-ET AL FIRE EXT INGUISHER Filed Jain. 26, 1929 Patented Jan. 14, 1930;

oar-re n stare trainee @F'FEQE HENRY MILTON saints, WILLIAM o.-DLAGDo1\i',nnD EDWARD J. DrtIsBow, or" TORONTO, on'rnnio; CANADA F nn nx'rmeorsnnn.

Application filed January 26, 1929. SerialNo. 335,240.,

erence is to be had to the following descrip-' tion and tothe accompanying dra wlngs in which: 4

Fig. 1 is a sectional elevation of the fire extinguisher showing in full lines the several parts of the grenade holder and iii-dotted lines a grenade seated on the -shelf'and retained in position by a segmental strap fusibly connected to the upright member.

Fig; 2 is a front elevation of the construction shownin Fig. l.

Fig. 3 is a sectional elevation of a modification of the grenade holder shown in Figs. 1 and 2.

Fig.4 is a front elevation of the construction shown in Fig. 3, and

I Fig. 5 is a cross section on Fig. 1. r

Like characters of reference refer to like parts throughout the specification and drawing's.

' The grenade holdercomprises an upright the line 5--5-,

member 1 which may. convenientlyv take the form of .a Hat plate of a height correspond ing to that of the grenade 2; the upper part 8 of the upright member being preferably shaped to conform to the grenade and pro vided with a its extremity and formed with an aperture 5 through which a hookor other hanger may be entered for attaching the holder to a supporting structure,

Integral with or connected to the upright member 2, ator, near its lower end, and dis posed at an oblique angle to its vertical plane, is a shelf or ledge 6 which in the form shown in the drawings has a downward-fbrward inclination, and in the bottom of the shelf or an aperture extending be seated, and a relug 4, extending upwardly from ledge is a recess7. This recess in the construction shown in .Fig. 2 takes the form of .through the shelf or ledge and in the construction shown in Fig. 1 takes the form of a cup shaped socket, the wall 8 of which is below the shelf or ledge and the aXisof which has a downwardrrearward inclination from'the underside of the shelf. 1 When the parts are assembled the grenade is seated-on the shelf or ledgef with its neck or base entered through the aperture 7 to prevent its lateral displacement. The downward-forward inclination o'f the shelf or ledge causes the grenade t'o'sl-ightly overbalance outwardly from the holder for ensuring its positive dislodgmentwhen the retaining member 9 embracing or engaging the upper part of the grenade separates from the upright member. The retaining member 9 shown in Figs. 1 and 3 consists of a segmental band one end of which is free and the other end of which is secured to the upper part of the upright member by a fusible rivet 10, capable of melting at a relatively low temperature.

The retaining member 9 overlies and partly embraces the dome of the grenade and, in conjunction with the shelfor ledge, maintains it in its set position in the holder until the fusible rivet melts. When that occurs the retaining member separates-from the upright member, and the grenade, owing to its overbalanced condition falls from the holder and breaksfor the liberation of its fire extinguishing contents. v,

The retaining member, the upright member, andfthe shelf or; ledge aremade of metal of sufficient tensile strength and rigidity to v sustain the weight of the-grenade and its contents under conditions of reasonable use and when the grenade is'assembled with the holder its weight is borne principally by the upright member and shelf or ledge, the only weight or strain imposed on the retaining member and fusible rivet being that resulting from the slightly overbalanced condition of the grenade. I

The free end 11 of the retaining member is of a.relatively considerable width to'pro- .vide 'suficient contact surface with the grenade for preventing its inadvertent move ment in a forward direction and the other end :or fixed end 12 is of a width approximating the width of the upright member.

At the extremity of the fixed end 12 of the retaining member is 'a narrow tip 13, loosely entered through ahole 14 in the upper part of the upright member which in conj unction with the fusible rivet prevents the in- Letters Patent is:

advertent movement of the retaining member in a lateral direction. 7

At the sides of the upright member,'interjacent the shelf or ledge and the retaining member, are lateral enlargements 15 having forwardlyprojecting lugs 16 for embracing he grenade and preventing its lateral movement in the holder.

Having thus fully described our invention what we claim as new and desire to secure by -1. In a fire extinguisher, agrenade holder comprising an upright member, a shelf connected to the upright member and,disposed at an oblique angle to its vertical plane upon which the grenade may be releasably seated and a retaining member fusibly connected to the upright member for overlying and embracing or partly embracing the grenade.

2.v In a fire extinguisher, a grenade holder comprising an uprightmember, a shelf connected to the upright member and at an angle to its vertical plane,

disposed a retaining member fusibly connected to the upright member for overlying and embrac ing or partly embracing the grenade.

3; In a fire extinguisher, a grenade holder comprising an upright member, the upper part of which isshaped to conform to the grenade, a shelf connected to the upright disposed at an oblique angle to its vertical plane, a retheigrenade.

5: A fire extinguisher, as clannedln claim 1 in which forwardly projecting lugs are provided at the sides of the upright member for embracing the grenade and preventing itslateral movement in the holder. 6. In a fire extinguisher, a grenade holder comprising an upright member the upper 1 part of which is shaped to conform to' the a retaining'member fusib in the shelf for the base 7. A fire extinguisher,,as claimed in claim said shelf having a downward-forward mclmationand for over-- lying and embracing or partly embracing grenade, ashelf connected to the upright member near its lower end and disposed at an oblique angle to its vertical projecting lugs at the sides of the upright member for embracing the grenade and preventing its lateral movement in the holder, ly connected to the upright member for overlying and embracing 'or partly embracing the of the grenade.

6 in which the wall of the socket is located below the underside of, the shelf,

8. A fire extinguisher, as claimed in claim '6 in which said shelf has a downward-forward inclination from the' upright member and the socket has a downward-rearward in,-v clination' from the underside of the shelf.

Dated at the city of Toronto, in the county of York, and Province of Ontario, Dominion of Canada, this fourteenth day of J anuary,.

HENRY M. GRILL S. W'. O. BLAGDON. E. J. BRISBOW.

plane, forwardly grenade, and a socket 

